<?php

class UnitProjectController extends Controller
{
	/**
	 * @var string the default layout for the views. Defaults to '//layouts/column2', meaning
	 * using two-column layout. See 'protected/views/layouts/column2.php'.
	 */
	//public $layout='//layouts/column2';

	/**
	 * @return array action filters
	 */
	public function filters()
	{
		return array(
			'accessControl', // perform access control for CRUD operations
		);
	}

	/**
	 * Specifies the access control rules.
	 * This method is used by the 'accessControl' filter.
	 * @return array access control rules
	 */
	public function accessRules()
	{
		return array(
			array('allow', // allow authenticated user to perform 'create' and 'update' actions
				'actions'=>array('index','view','create','update',
								'status', 'describe', 'sub', 'end'
				),
				'users'=>array('@'),
			),
			array('allow', // allow admin user to perform 'admin' and 'delete' actions
				'actions'=>array('admin','delete'),
				'expression'=>'Yii::app()->user->isAdmin()==1',
			),
			array('deny',  // deny all users
				'users'=>array('*'),
			),
		);
	}

	/**
	 * Displays a particular model.
	 * @param integer $id the ID of the model to be displayed
	 */
	public function actionView($id)
	{
		$this->render('view',array(
			'model'=>$this->loadModel($id),
		));
	}

	/**
	 * Displays the status for the unit project
	 * @param integer $id the ID of the model to be displayed
	 */
	public function actionStatus($id)
	{
		$this->render('status',array(
				'model'=>$this->loadModel($id),
		));
	}
	
	/**
	 * Creates a new unit project -> the first step of creating a new project
	 * If creation is successful, the browser will be redirected to the 'sub' page.
	 */
	public function actionCreate($pid)
	{
		$model=new UnitProject;
		$project = Project::model()->findByPk($pid);

		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);

		if(isset($_POST['UnitProject']))
		{
			$model->attributes=$_POST['UnitProject'];
			$model->project_id = $pid;
			if($model->save())
				$this->redirect(array('sub','id'=>$model->id));
		}

		$this->render('create',array(
			'model'=>$model,
			'project'=>$project,
		));
	}
	
	/**
	 * Describe the unit project -> the first step of creating a new project
	 * @param integer $id the ID of the model to be displayed
	 */
	public function actionDescribe($id)
	{
		$model=$this->loadModel($id);
			
		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);
	
		if(isset($_POST['UnitProject']))
		{
			$model->attributes=$_POST['UnitProject'];
			if($model->save())
				$this->redirect(array('sub','id'=>$model->id));
		}
	
		$this->render('describe',array(
				'model'=>$model,
		));
	}
	
	/**
	 * Unit Project Subdivision fill in -> the second step of creating a new project
	 * @param integer $id the ID of the model to be displayed
	 */
	public function actionSub($id)
	{
		$model=$this->loadModel($id);
	
		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);
	
		if(isset($_POST['UnitProject']))
		{
			$model->attributes=$_POST['UnitProject'];
			$model->divide_projects_status = 1;
			if($model->save())
				$this->redirect(array('end','id'=>$model->id));
		}
	
		$this->render('sub',array(
				'model'=>$model,
		));
	}
	
	/**
	 * Unit Project finish -> the final step of a unit project
	 * @param integer $id the ID of the model to be displayed
	 */
	public function actionEnd($id)
	{
		$model=$this->loadModel($id);
	
		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);
	
		if(isset($_POST['UnitProject']))
		{
			$model->attributes=$_POST['UnitProject'];
			$model->end_work_status = 1;
			if($model->save())
				$this->redirect(array('project/sub','id'=>$model->project->id));
		}
	
		$this->render('end',array(
				'model'=>$model,
		));
	}

	/**
	 * Updates a particular model.
	 * If update is successful, the browser will be redirected to the 'view' page.
	 * @param integer $id the ID of the model to be updated
	 */
	public function actionUpdate($id)
	{
		$model=$this->loadModel($id);

		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);

		if(isset($_POST['UnitProject']))
		{
			$model->attributes=$_POST['UnitProject'];
			if($model->save())
				$this->redirect(array('view','id'=>$model->id));
		}

		$this->render('update',array(
			'model'=>$model,
		));
	}

	/**
	 * Deletes a particular model.
	 * If deletion is successful, the browser will be redirected to the 'admin' page.
	 * @param integer $id the ID of the model to be deleted
	 */
	public function actionDelete($id)
	{
		if(Yii::app()->request->isPostRequest)
		{
			// we only allow deletion via POST request
			$this->loadModel($id)->delete();

			// if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
			if(!isset($_GET['ajax']))
				$this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin'));
		}
		else
			throw new CHttpException(400,'Invalid request. Please do not repeat this request again.');
	}

	/**
	 * Lists all models.
	 */
	public function actionIndex()
	{
		$dataProvider=new CActiveDataProvider('UnitProject');
		$this->render('index',array(
			'dataProvider'=>$dataProvider,
		));
	}

	/**
	 * Manages all models.
	 */
	public function actionAdmin()
	{
		$model=new UnitProject('search');
		$model->unsetAttributes();  // clear any default values
		if(isset($_GET['UnitProject']))
			$model->attributes=$_GET['UnitProject'];

		$this->render('admin',array(
			'model'=>$model,
		));
	}

	/**
	 * Returns the data model based on the primary key given in the GET variable.
	 * If the data model is not found, an HTTP exception will be raised.
	 * @param integer the ID of the model to be loaded
	 */
	public function loadModel($id)
	{
		$model=UnitProject::model()->findByPk($id);
		if($model===null)
			throw new CHttpException(404,'The requested page does not exist.');
		return $model;
	}

	/**
	 * Performs the AJAX validation.
	 * @param CModel the model to be validated
	 */
	protected function performAjaxValidation($model)
	{
		if(isset($_POST['ajax']) && $_POST['ajax']==='unit-project-form')
		{
			echo CActiveForm::validate($model);
			Yii::app()->end();
		}
	}
}
